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https://www.readbyqxmd.com/read/28462474/brain-heparan-sulphate-proteoglycans-are-altered-in-developing-foetus-when-exposed-to-in-utero-hyperglycaemia
#1
M S Sandeep, C D Nandini
In-utero exposure of foetus to hyperglycaemic condition affects the growth and development of the organism. The brain is one of the first organs that start to develop during embryonic period and glycosaminoglycans (GAGs) and proteoglycans (PGs) are one of the key molecules involved in its development. But studies on the effect of hyperglycaemic conditions on brain GAGs/PGs are few and far between. We, therefore, looked into the changes in brain GAGs and PGs at various developmental stages of pre- and post-natal rats from non-diabetic and diabetic mothers as well as in adult rats induced with diabetes using a diabetogenic agent, Streptozotocin...
May 2, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28445969/glypican-1-targeted-antibody-based-therapy-induces-preclinical-antitumor-activity-against-esophageal-squamous-cell-carcinoma
#2
Emi Harada, Satoshi Serada, Minoru Fujimoto, Yusuke Takahashi, Tsuyoshi Takahashi, Hisashi Hara, Rie Nakatsuka, Takahito Sugase, Takahiko Nishigaki, Yurina Saito, Kosuke Hiramatsu, Satoshi Nojima, Risa Mitsuo, Tomoharu Ohkawara, Eiichi Morii, Masaki Mori, Yuichiro Doki, Yasufumi Kaneda, Tetsuji Naka
Esophageal squamous cell carcinoma (ESCC) has a poor prognosis despite the development of multimodal therapy. Expression of glypican-1 (GPC1) has been reported to be elevated in a subset of patients with ESCC and associated with chemoresistance. This study aimed to determine the association of GPC1 with ESCC growth and potential usefulness of the GPC1 targeted therapy by monoclonal antibody (mAb) in ESCC. Expression of GPC1 was higher in ESCC tumor tissues than in adjacent non-tumoral tissues and normal tissues...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28440066/elevated-glypican-1-expression-is-associated-with-an-unfavorable-prognosis-in-pancreatic-ductal-adenocarcinoma
#3
Haizhen Lu, Fangfei Niu, Fang Liu, Jiajia Gao, Yulin Sun, Xiaohang Zhao
Pancreatic ductal adenocarcinoma (PDAC) is the most lethal cancer in humans, with a 5-year survival rate of <5%. Recently, glypican-1 (GPC1)-expressing circulating exosomes were found to be a promising diagnostic tool for PDAC. However, the aberrant expression of GPC1 has not been systematically evaluated in large-scale clinical samples of PDAC. Here, we performed a comprehensive analysis of GPC1 mRNA and protein expression features. Included in this study were 178 PDAC patients from the cancer genome atlas (TCGA) and 186 subjects whose tissues were used in immunohistochemical staining assays...
April 24, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28426184/alterations-in-mandibular-morphology-associated-with-glypican-1-and-glypican-3-gene-mutations
#4
M Mian, S Ranjitkar, G C Townsend, P J Anderson
OBJECTIVES: Glypican 1 (GPC1) and glypican 3 (GPC3) are bone co-regulators that act downstream in many of the signalling pathways associated with craniosynostosis. Morphometric data from GPC-knockout mice were analysed to determine whether elimination of GPC1 and GPC3 genes would alter mandibular morphology. SETTING AND SAMPLE POPULATION: The murine model included five male and five female mandibles in each of GPC1-knockout, GPC1/GPC3-knockout and wild-type (control) groups...
April 20, 2017: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/28300561/nucleolin-is-a-nuclear-target-of-heparan-sulfate-derived-from-glypican-1
#5
Fang Cheng, Mattias Belting, Lars-Åke Fransson, Katrin Mani
The recycling, S-nitrosylated heparan sulfate (HS) proteoglycan glypican-1 releases anhydromannose (anMan)-containing HS chains by a nitrosothiol-catalyzed cleavage in endosomes that can be constitutive or induced by ascorbate. The HS-anMan chains are then transported to the nucleus. A specific nuclear target for HS-anMan has not been identified. We have monitored endosome-to-nucleus trafficking of HS-anMan by deconvolution and confocal immunofluorescence microscopy using an anMan-specific monoclonal antibody in non-growing, ascorbate-treated, and growing, untreated, wild-type mouse embryonic fibroblasts and hypoxia-exposed Alzheimer mouse Tg2576 fibroblasts and human U87 glioblastoma cells...
May 1, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28211170/endothelial-glycocalyx-as-a-critical-signalling-platform-integrating-the-extracellular-haemodynamic-forces-and-chemical-signalling
#6
REVIEW
Ye Zeng
The glycocalyx covers the human mammalian cells and plays important roles in stroke, inflammation and atherosclerosis. It has also been shown to be involved in endothelial mechanotransduction of shear stress. Shear stress induces the remodelling of the major component of the glycocalyx including glypican-1, a cell membrane heparan sulphate proteoglycan. Other factors, such as sphingosine-1-phosphate (S1P), protect the glycocalyx against syndecan-1 ectodomain shedding and induce the synthesis of heparan sulphate...
February 17, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28102194/%C3%AE-3-chains-of-type-v-collagen-regulate-breast-tumour-growth-via-glypican-1
#7
Guorui Huang, Gaoxiang Ge, Valerio Izzi, Daniel S Greenspan
Pericellular α3(V) collagen can affect the functioning of cells, such as adipocytes and pancreatic β cells. Here we show that α3(V) chains are an abundant product of normal mammary gland basal cells, and that α3(V) ablation in a mouse mammary tumour model inhibits mammary tumour progression by reducing the proliferative potential of tumour cells. These effects are shown to be primarily cell autonomous, from loss of α3(V) chains normally produced by tumour cells, in which they affect growth by enhancing the ability of cell surface proteoglycan glypican-1 to act as a co-receptor for FGF2...
January 19, 2017: Nature Communications
https://www.readbyqxmd.com/read/28075131/classical-galactosemia-insight-into-molecular-pathomechanisms-by-differential-membrane-proteomics-of-fibroblasts-under-galactose-stress
#8
Simon Staubach, Stefan Müller, Murat Pekmez, Franz-Georg Hanisch
Classical galactosemia, a hereditary metabolic disease caused by the deficiency of galactose-1-phosphate uridyltransferase (GALT; EC 2.7.712), results in an impaired galactose metabolism and serious long-term developmental affection of the CNS and ovaries, potentially related in part to endogenous galactose-induced protein dysglycosylation. In search for galactose-induced changes in membrane raft proteomes of GALT-deficient cells, we performed differential analyses of lipid rafts from patient-derived (Q) and sex- and age-matched control fibroblasts (H) in the presence or absence of the stressor...
January 24, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/27951474/down-regulation-of-fibroblast-growth-factor-2-and-its-co-receptors-heparan-sulfate-proteoglycans-by-resveratrol-underlies-the-improvement-of-cardiac-dysfunction-in-experimental-diabetes
#9
Célia Maria Cássaro Strunz, Alessandra Roggerio, Paula Lázara Cruz, Ana Paula Pacanaro, Vera Maria Cury Salemi, Luiz Alberto Benvenuti, Antonio de Pádua Mansur, Maria Cláudia Irigoyen
Cardiac remodeling in diabetes involves cardiac hypertrophy and fibrosis, and fibroblast growth factor 2 (FGF2) is an important mediator of this process. Resveratrol, a polyphenolic antioxidant, reportedly promotes the improvement of cardiac dysfunction in diabetic rats. However, little information exists linking the amelioration of the cardiac function promoted by resveratrol and the expression of FGF2 and its co-receptors, heparan sulfate proteoglycans (HSPGs: Glypican-1 and Syndecan-4), in cardiac muscle of Type 2 diabetic rats...
December 2, 2016: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/27688027/role-of-glypican-1-in-endothelial-nos-activation-under-various-steady-shear-stress-magnitudes
#10
Ye Zeng, Jingxia Liu
Blood flow patterns in proatherogenic and antiatherogenic regions are rather different. We hypothesize that the laminar flow with steady shear stress increased nitric oxide (NO) bioavailability while disturbed flow with low shear stress reduced it, which is mediating by glypican-1. Thus, we detected the expression of glypican-1 under different shear stress magnitudes, and tested whether the magnitude of shear stress determines the level of endothelial NO synthase (eNOS) via glypican-1 by using phosphatidylinositol phospholipase C (PI-PLC)...
November 1, 2016: Experimental Cell Research
https://www.readbyqxmd.com/read/27595303/sensitive-time-gated-immunoluminescence-detection-of-prostate-cancer-cells-using-a-tegylated-europium-ligand
#11
Nima Sayyadi, Irene Justiniano, Russell E Connally, Run Zhang, Bingyang Shi, Liisa Kautto, Arun V Everest-Dass, Jingli Yuan, Bradley J Walsh, Dayong Jin, Robert D Willows, James A Piper, Nicolle H Packer
We describe the application of a synthetically developed tetradentate β-diketonate-europium chelate with high quantum yield (39%), for sensitive immunodetection of prostate cancer cells (DU145). MIL38 antibody, a mouse monoclonal antibody against Glypican 1, conjugated directly to the chelate via lysine residues, resulted in soluble (hydrophilic) and stable immunoconjugates. Indirect labeling of the antibody by a europium chelated secondary polyclonal antibody and a streptavidin/biotin pair was also performed...
October 4, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/27576135/mass-spectrometry-based-proteomics-revealed-glypican-1-as-a-novel-adam17-substrate
#12
Rebeca Kawahara, Daniela Campos Granato, Sami Yokoo, Romênia Ramos Domingues, Daniel Maragno Trindade, Adriana Franco Paes Leme
ADAM17 (a disintegrin and metalloproteinase 17) is a plasma membrane metalloprotease involved in proteolytic release of the extracellular domain of many cell surface molecules, a process known as ectodomain shedding. Through this process, ADAM17 is implicated in several aspects of tumor growth and metastasis in a broad range of tumors, including head and neck squamous cell carcinomas (HNSCC). In this study, mass spectrometry-based proteomics approaches revealed glypican-1 (GPC1) as a new substrate for ADAM17, and its shedding was confirmed to be metalloprotease-dependent, induced by a pleiotropic agent (PMA) and physiologic ligand (EGF), and inhibited by marimastat...
January 16, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/27545211/hemodynamic-shear-stress-regulates-the-transcriptional-expression-of-heparan-sulfate-proteoglycans-in-human-umbilical-vein-endothelial-cell
#13
J-X Liu, Z-P Yan, Y-Y Zhang, J Wu, X-H Liu, Y Zeng
We have previously demonstrated the adaptive remodeling of endothelial glycocalyx under shear stress. However, the underlying mechanism in glycocalyx remodeling, especially the expression of the components heparan sulfate proteoglycans (HSPGs) under shear stress was not completely known. In the present study, we investigated the expression of those HSPGs (syndecan family and glypican-1) in human umbilical vein endothelial cells (HUVECs) responded to the distinct magnitude of shear stress, and performed a systematic and comprehensive analyze on the relationship between shear stress and HSPGs mRNA expression in a temporal manner...
July 31, 2016: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/27526058/loss-of-a-candidate-biliary-atresia-susceptibility-gene-add3a-causes-biliary-developmental-defects-in-zebrafish
#14
Vivian Tang, Zenobia C Cofer, Shuang Cui, Valerie Sapp, Kathleen M Loomes, Randolph P Matthews
OBJECTIVES: Biliary atresia (BA) is a progressive fibroinflammatory cholangiopathy affecting the bile ducts of neonates. Although BA is the leading indication for pediatric liver transplantation, the etiology remains elusive. Adducin 3 (ADD3) and X-prolyl aminopeptidase 1 (XPNPEP1) are 2 genes previously identified in genome-wide association studies as potential BA susceptibility genes. Using zebrafish, we investigated the importance of ADD3 and XPNPEP1 in functional studies. METHODS: To determine whether loss of either gene leads to biliary defects, we performed morpholino antisense oligonucleotide (MO) knockdown studies targeting add3a and xpnpep1 in zebrafish...
November 2016: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/27492928/nanomechanical-sandwich-assay-for-multiple-cancer-biomarkers-in-breast-cancer-cell-derived-exosomes
#15
H Etayash, A R McGee, K Kaur, T Thundat
The use of exosomes as cancer diagnostic biomarkers is technically limited by their size, heterogeneity and the need for extensive purification and labelling. We report the use of cantilever arrays for simultaneous detection of multiple exosomal surface-antigens with high sensitivity and selectivity. Exosomes from breast cancer were selectively identified by detecting over-expressed membrane-proteins CD24, CD63, and EGFR. Excellent selectivity however, was achieved when targeting the cell-surface proteoglycan, Glypican-1 at extraordinary limits (∼200 exosomes per mL, ∼0...
August 18, 2016: Nanoscale
https://www.readbyqxmd.com/read/27418536/retraction-for-qiao-et-al-glypican-1-stimulates-s-phase-entry-and-dna-replication-in-human-glioma-cells-and-normal-astrocytes
#16
Dianhua Qiao, Kristy Meyer, Andreas Friedl
No abstract text is available yet for this article.
August 1, 2016: Molecular and Cellular Biology
https://www.readbyqxmd.com/read/27371565/glypican-1-stimulates-skp2-autoinduction-loop-and-g1-s-transition-in-endothelial-cells
#17
(no author information available yet)
No abstract text is available yet for this article.
July 1, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27313791/glypican-1-as-a-biomarker-for-prostate-cancer-isolation-and-characterization
#18
Quach Truong, Irene O Justiniano, Aline L Nocon, Julie T Soon, Sandra Wissmueller, Douglas H Campbell, Bradley J Walsh
Prostate cancer is the most frequently diagnosed male visceral cancer and the second leading cause of cancer death in the United States. Standard tests such as prostate-specific antigen (PSA) measurement have poor specificity (33%) resulting in a high number of false positive reports. Consequently there is a need for new biomarkers to address this problem. The MIL-38 antibody was first described nearly thirty years ago, however, until now, the identification of the target antigen remained elusive. By a series of molecular techniques and mass spectrometry, the MIL-38 antigen was identified to be the highly glycosylated proteoglycan Glypican-1 (GPC-1)...
2016: Journal of Cancer
https://www.readbyqxmd.com/read/27310703/overexpression-of-glypican-1-implicates-poor-prognosis-and-their-chemoresistance-in-oesophageal-squamous-cell-carcinoma
#19
Hisashi Hara, Tsuyoshi Takahashi, Satoshi Serada, Minoru Fujimoto, Tomoharu Ohkawara, Rie Nakatsuka, Emi Harada, Takahiko Nishigaki, Yusuke Takahashi, Satoshi Nojima, Yasuhiro Miyazaki, Tomoki Makino, Yukinori Kurokawa, Makoto Yamasaki, Hiroshi Miyata, Kiyokazu Nakajima, Shuji Takiguchi, Eiichi Morii, Masaki Mori, Yuichiro Doki, Tetsuji Naka
BACKGROUND: Despite the recent improvements in multimodal therapies for oesophageal squamous cell carcinoma (ESCC), the prognosis remains poor. The identification of suitable biomarkers for predicting the prognosis and chemo-sensitivity is required to develop targeted treatments and improve treatment results. METHODS: Proteins highly expressed in ESCC cell lines compared with normal oesophageal cell lines were screened by isobaric tag for relative and absolute quantitation (iTRAQ)...
June 28, 2016: British Journal of Cancer
https://www.readbyqxmd.com/read/27101205/glypican-1-nanoliposomes-for-potentiating-growth-factor-activity-in-therapeutic-angiogenesis
#20
Anthony J Monteforte, Brian Lam, Subhamoy Das, Somshuvra Mukhopadhyay, Catherine S Wright, Patricia E Martin, Andrew K Dunn, Aaron B Baker
Therapeutic angiogenesis is a highly appealing concept for treating tissues that become ischemic due to vascular disease. A major barrier to the clinical translation of angiogenic therapies is that the patients that are in the greatest need of these treatments often have long term disease states and co-morbidities, such as diabetes and obesity, that make them resistant to angiogenic stimuli. In this study, we identified that human patients with type 2 diabetes have reduced levels of glypican-1 in the blood vessels of their skin...
July 2016: Biomaterials
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